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壳聚糖/AM/DM接枝共聚物对纸张的增强效果

Strengthening Performance of Chitosan-AM-DM Graft Copolymer

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【作者】 牛恒张光华郝皓张安琪刘丽娟王西锋

【Author】 NIU Heng,ZHANG Guang-hua,HAO Hao,ZHANG An-qi,LIU Li-juan,WANG Xi-feng(Key Laboratory of Additives Chemistry & Technology for Light Chemical Industry,Ministry of Education;College of Chemistry and Chemical Engineering,Shaanxi University of Science & Technology,Xi’an,710021 China)

【机构】 陕西科技大学教育部轻化助剂化学与技术重点实验室

【摘要】 采用硫酸亚铁(FeSO4)+过氧化氢(H2O2)氧化还原体系引发制备壳聚糖(CS)和丙烯酰胺(AM)及甲基丙烯酸二甲基氨基乙酯(DM)三元接枝共聚物,讨论了反应条件对接枝共聚物在纸张上增强效果的影响。其最佳合成条件为:m(FeSO4)=0.05%,m(FeSO4):m(H2O2)=0.05:1.8,m(CS)=1%,m(AM)=5%,m(DM)=0.3%,反应体系pH值为4~6。当接枝共聚物用量为0.4%时,与同等条件下壳聚糖-AM接枝共聚物相比,可使纸张的抗张强度和耐破度分别提高15%和18.68%。

【Abstract】 The graft copolymer was synthesized through oxidation-reduction system including ferrous sulfate(FeSO 4) and hydrogen dioxide(H2O2),by using chitosan(CS) as a dispersant,dimethylaminoethyl methacrylate(DM) and acrylamide(AM) as monomers.e effects of reaction factors on strengthening property were studied.e optimum synthesis conditions are as follows:the dosage of FeSO 4 being 0.05%,m(FeSO4):m(H2O2) being 0.05:1.8,CS being 1%,AM being 5%,and DM dosage being 0.3%,pH of system being 4 ~ 6.When the dosage of graft copolymer being 0.4%,the tensile strength and bursting strength of paper could improve by 15% and 18.68% compared with the same condition as CS graft AM copolymer.

【基金】 陕西省教育厅重点实验室项目——造纸填料表面组装包覆改性及其应用研究,项目编号:08JK231
  • 【文献出处】 纸和造纸 ,Paper and Paper Making , 编辑部邮箱 ,2011年08期
  • 【分类号】TS727
  • 【下载频次】124
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